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Effects of chemical admixtures on the rheology of fresh recycled aggregate concretes

Autor
Barra, M.; Faleschini, F.; Jiménez, C.; Aponte, D.F.
Tipus d'activitat
Article en revista
Revista
Construction & building materials
Data de publicació
2017-10
Volum
151
Pàgina inicial
353
Pàgina final
362
DOI
https://doi.org/10.1016/j.conbuildmat.2017.06.111 Obrir en finestra nova
Repositori
https://www.researchgate.net/publication/317866464_Effects_of_chemical_admixtures_on_the_rheology_of_fresh_recycled_aggregate_concretes Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0950061817312540 Obrir en finestra nova
Resum
Air-entrainers and super-plasticizers are among the most used chemical admixtures that affect the rheological parameters of fresh cement-based materials. In this work, their influence on fresh properties of recycled aggregate concrete (RAC) is investigated through an experimental campaign, where Bingham rheological parameters, i.e. plastic viscosity µ and yield stress t0, were analyzed. Ten concrete mixtures were prepared, varying w/c ratio, admixtures content, recycled coarse aggregate substit...
Paraules clau
Air-entrainer admixture, Equivalent Mortar Volume, Fresh concrete, Recycled aggregate concrete, Rheology, Super-plasticizer
Grup de recerca
MATCAR - Materials de Construcció i Carreteres

Participants